Station Call Back

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Тел. : (495) 730-4022 |

Station Call Back
Functional description
If the line of station Subscriber A who is called is busy, the function makes a call back so that when the busy line becomes available, the calling signal is automatically sent to the calling Subscriber B for whom a station call is automatically reserved. If the Subscriber A hands off the handset after receiving the calling signal, another calling signal is sent to Subscriber B and finally a call between them is established.
Operating procedure
Station call back registration in the general phone

Dial a extension subscriber’s number.
Hear the busy tone since the called subscriber’s line is busy.
Press the Hook Flash while hearing the busy tone and dial the call back code (Default:4).
Hear the service set tone which indicates that the call back is completed.

5 Hook on the handset and wait.

6 The call of the subscriber who a call is reserved for finishes.

7 The calling signal is sent to the subscriber who reserved a call.

8 The subscriber who reserved a call hooks off the handset.

9 The calling tone and the calling signal are sent the subscriber who reserved the call and the other subscriber, respectively.

10 The other subscriber answers the calling signal.

11 A call is established.

Station call back registration in D-Tel

Dial a extension subscriber’s number.
Hear the busy tone since the called subscriber’s line is busy.
Dial the call back code(Default:4) after pressing the call back button or the Hook Flash while hearing the busy tone.

4 Hear the service set tone which indicates that the call back is completed.

The following message is displayed on the LCD screen of D-Tel.

PLACED IN QUEUE FOR

STA XXXX 09:00 am

5 Hook on the handset and wait.

6 The call of the subscriber who a call is reserved for finishes.

7 The calling signal is sent to the subscriber who reserved a call.

8 The subscriber who reserved a call hooks off the handset.

9 The calling tone and the calling signal are sent the subscriber who reserved the call and the other subscriber, respectively.

10 The other subscriber answers the calling signal.

11 A call is established.

Call back cancellation in the general phone

The subscriber who reserved a call to another extension subscriber hands off the handset.
Dial the call back cancellation code (Default:*55).
Hear the service set tone which indicates that the function is cancelled.

Call back cancellation in D-Tel

The subscriber who reserved a call to another extension subscriber hands off the handset.
Press the Call Back button or dial the call back cancellation code (Default:*55).
Hear the service set tone which indicates that the function is cancelled.

Service conditions
The system can simultaneously register the station/extension call back up to 100 calls.

If the step call is being used in the system, this function is not available.

If a extension subscriber dials the call back cancellation code without a call back, he or she will hear the lockout tone.

If the called subscriber receives the calling signal as the subscriber’s line becomes available after the call back registration, the call back is automatically cancelled.

Interaction
If there is no response from the called subscriber in a certain period of time despite that a calling signal is sent to the subscriber as the subscriber’s line becomes available after the call back registration, the call back is automatically cancelled.

A extension subscriber may not reserve more than one call. If the subscriber does so, the previously reserved call is cancelled and the last call is reserved.